CN202937195U - Sucker rod universal joint - Google Patents
Sucker rod universal joint Download PDFInfo
- Publication number
- CN202937195U CN202937195U CN 201220699724 CN201220699724U CN202937195U CN 202937195 U CN202937195 U CN 202937195U CN 201220699724 CN201220699724 CN 201220699724 CN 201220699724 U CN201220699724 U CN 201220699724U CN 202937195 U CN202937195 U CN 202937195U
- Authority
- CN
- China
- Prior art keywords
- universal
- head
- sucker rod
- polytetrafluoroethylene
- universal joint
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired - Fee Related
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Abstract
A sucker rod universal joint comprises a universal coupling, a polytetrafluoroethylene centering device, a universal head and a universal head cover, wherein the upper portion of the universal head is connected with the lower portion of the universal coupling, and the lower portion of the universal head is connected with the upper portion of the universal head cover. The middle of the universal head is provided with the polytetrafluoroethylene centering device, the upper portion of the universal head is connected with a sucker rod column, and the lower portion of the universal head cover is connected with the sucker rod column. According to the sucker rod universal joint, under the action of the universal head and the polytetrafluoroethylene centering device, the sucker rod column can be bent along with bending of an oil pipe at the center of the oil pipe, oil pipe eccentric abrasion is avoided, the sucker rod cannot produce deformation stress, and service lives of the sucker rod and the oil pipe are prolonged.
Description
Technical field
The utility model relates to a kind of pumping rod universal joint, solves the problem of sucker rod partial wear oil pipe.
Background technology
In the pumping production process, cause the bending of oil pipe due to the bending of sleeve pipe, the bending of oil pipe causes rod collar or rod drag oil pipe, serious is saturating with oil pipe grinding, causes that tubing and casing is communicated with, and causes backflow, oil pumper flogs a dead horse, the waste electric energy, and cause workover treatment, the waste operating cost.
Summary of the invention
The purpose of this utility model is to provide a kind of pumping rod universal joint, overcomes the defective that above-mentioned prior art exists.
Technical scheme of the present invention is achieved in the following ways:
The utility model comprises Universal-head box cupling, polytetrafluoroethylene (PTFE) centralizer, Universal-head and universal head-shield, it is characterized in that Universal-head top is connected with Universal-head box cupling bottom, the bottom is connected with Universal-head head-shield top, the Universal-head middle part is provided with the polytetrafluoroethylene (PTFE) centralizer, Universal-head top is connected with the sucker rod roofbolt, and universal head-shield bottom sucker rod roofbolt is connected.
The Universal-head box cupling is made as cylindrical, and periphery is provided with the spanner rib, and top is provided with the box thread that is threaded with sucker rod, and the bottom is provided with the box thread that is threaded with Universal-head.
Universal-head top is made as cylindrical, and is provided with the male thread that is threaded with the Universal-head box cupling, and the bottom is provided with a ball.
Universal head-shield is made as cylindrical, and periphery is provided with the spanner rib, and upper center is provided with the bell that large mouth makes progress, and the bell lower, outer perimeter is made as circular arc, and the bottom is provided with the box thread that is threaded with sucker rod.
The polytetrafluoroethylene (PTFE) centralizer is made as cylindrical, and periphery is provided with the stream oil groove, and the center is provided with centre bore.
The utility model is under the effect of Universal-head and polytetrafluoroethylene (PTFE) centralizer, and sucker rod can be crooked with tubing bending at the oil pipe center, can not produce eccentrically worn tubing, and the sucker rod stress that can not deform has extended application life of R a T.
Description of drawings
Accompanying drawing 1-structural representation of the present utility model;
1-Universal-head box cupling in figure, 2-polytetrafluoroethylene (PTFE) centralizer, 3-Universal-head, the universal head-shield of 4-, 5-sucker rod.
The specific embodiment
For further disclosing the technical solution of the utility model, elaborate by embodiment below in conjunction with Figure of description:
The utility model comprises Universal-head box cupling 1, polytetrafluoroethylene (PTFE) centralizer 2, Universal-head 3 and universal head-shield 4, it is characterized in that Universal-head 3 tops are connected with Universal-head box cupling 1 bottom, the bottom is connected with universal head-shield 4 tops, Universal-head 3 middle parts are provided with polytetrafluoroethylene (PTFE) centralizer 2, Universal-head 3 tops are connected with sucker rod 5 roofbolts, and Universal-head head-shield 4 bottom sucker rod roofbolts are connected.
When using the utility model, connect in the sucker rod roofbolt, crooked situation according to oil pipe, a plurality of pumping rod universal joints can be set at the bending section of oil pipe, in the normal oil pumping process of oil pumper, along with the flexibility of oil pipe, the pumping rod universal joint plays regulating action and centralizing function to the concentricity of reply sucker rod 5.Make the sucker rod oil pipe that do not rub, extended simultaneously the physical life of R a T.
Claims (5)
1. pumping rod universal joint, comprise Universal-head box cupling, polytetrafluoroethylene (PTFE) centralizer, Universal-head and universal head-shield, it is characterized in that Universal-head top is connected with Universal-head box cupling bottom, the bottom is connected with Universal-head head-shield top, the Universal-head middle part is provided with the polytetrafluoroethylene (PTFE) centralizer, Universal-head top is connected with the sucker rod roofbolt, and universal head-shield bottom sucker rod roofbolt is connected.
2. pumping rod universal joint according to claim 1, it is characterized in that: the Universal-head box cupling is made as cylindrical, and periphery is provided with the spanner rib, and top is provided with the box thread that is threaded with sucker rod, and the bottom is provided with the box thread that is threaded with Universal-head.
3. pumping rod universal joint according to claim 1 is characterized in that: Universal-head top is made as cylindrical, and is provided with the male thread that is threaded with the Universal-head box cupling, and the bottom is provided with a ball.
4. pumping rod universal joint according to claim 1, it is characterized in that: universal head-shield is made as cylindrical, and periphery is provided with the spanner rib, and upper center is provided with the bell that large mouth makes progress, the bell lower, outer perimeter is made as circular arc, and the bottom is provided with the box thread that is threaded with sucker rod.
5. pumping rod universal joint according to claim 1, it is characterized in that: the polytetrafluoroethylene (PTFE) centralizer is made as cylindrical, and periphery is provided with the stream oil groove, and the center is provided with centre bore.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220699724 CN202937195U (en) | 2012-12-05 | 2012-12-05 | Sucker rod universal joint |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220699724 CN202937195U (en) | 2012-12-05 | 2012-12-05 | Sucker rod universal joint |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202937195U true CN202937195U (en) | 2013-05-15 |
Family
ID=48321439
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201220699724 Expired - Fee Related CN202937195U (en) | 2012-12-05 | 2012-12-05 | Sucker rod universal joint |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202937195U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112065298A (en) * | 2020-09-22 | 2020-12-11 | 西华大学 | Shale gas drilling type coring apparatus short joint connecting mechanism |
-
2012
- 2012-12-05 CN CN 201220699724 patent/CN202937195U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112065298A (en) * | 2020-09-22 | 2020-12-11 | 西华大学 | Shale gas drilling type coring apparatus short joint connecting mechanism |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C17 | Cessation of patent right | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20130515 Termination date: 20131205 |